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Folder AT&T Specifications (pre-BSP) (by Doc #)

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4-digit all numeric codes, used before about 1930.

Documents

pdf AT&T Spec 3855 - CP Insert Mar31 Adjustments Substation Apparatus Popular

By 2871 downloads

Download (pdf, 363 KB)

Spec3855_CP_Insert_Mar31_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - CP Insert Mar31 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3855 - Mar17 Adjustments Substation Apparatus Popular

By 3023 downloads

Download (pdf, 4.49 MB)

Spec3855_Mar17_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - Mar17 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3855 - SuppB Sep30 Adjustments Substation Apparatus Popular

By 2916 downloads

Download (pdf, 2.11 MB)

Spec3855_SuppB_Sep30_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - SuppB Sep30 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3855 - SuppC Mar31 Adjustments Substation Apparatus Popular

By 2725 downloads

Download (pdf, 627 KB)

Spec3855_SuppC_Mar31_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - SuppC Mar31 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3859 - Aug22 - Station Wiring Plans Popular

By 3194 downloads

Download (pdf, 1.78 MB)

Spec3859_Aug22_Substation_Wiring_Plans.pdf

AT&T Spec 3859 - Aug22 - Station Wiring Plans
Specification 3859, August 1922.  Contributed by Steve Cichorsky.

pdf AT&T Spec 3859 - CP Insert Apr31 Station Wiring Plans Popular

By 2669 downloads

Download (pdf, 374 KB)

Spec3859_CP_Insert_Apr31_Station_Wiring_Plans.pdf

AT&T Spec 3859 - CP Insert Apr31 Station Wiring Plans
Contributed by Chuck Hensley.

pdf AT&T Spec 3859 - SuppB Sep30 Station Wiring Plans Popular

By 3231 downloads

Download (pdf, 11.43 MB)

Spec3859_SuppB_Sep30_Station_Wiring_Plans.pdf

AT&T Spec 3859 - SuppB Sep30 Station Wiring Plans
Contributed by Chuck Hensley.

pdf AT&T Spec 3859 Aug22 Substation Wiring Plans Ocr R Popular

By 3005 downloads

Download (pdf, 5.42 MB)

ATT_Spec_3859_Aug22_Substation_Wiring_Plans_ocr_r.pdf

AT&T Spec 3859 Aug22 Substation Wiring Plans Ocr R

Contributed by Steve Cichorsky. 

pdf AT&T Spec 4159 - CP Insert Dec24 Maintenance Automatic Electric Dials Substations Popular

By 2563 downloads

Download (pdf, 342 KB)

Spec4159_CP_Insert_Dec24_Maintenance_Automatic_Electric_Dials_Substations.pdf

AT&T Spec 4159 - CP Insert Dec24 Maintenance Automatic Electric Dials Substations
Contributed by Chuck Hensley.

pdf AT&T Spec 4159 - Jan22 Maintenance AE Dials Substations Popular

By 544 downloads

Download (pdf, 2.37 MB)

ATT_Spec_4159_Jan22_Maint_AE_Dials_at_Substations_tci.pdf

AT&T Spec 4159 - Jan22 Maintenance AE Dials Substations

16 pages. January 1922. Cleaned up scan of this classic specification, including parts inspection and dial speed adjustment. Contributed by Jeff Lamb. Bookmarked by Paul Fassbender.

pdf AT&T Spec 4159 - Jan22 Maintenance Automatic Electric Dials Substations Popular

By 3307 downloads

Download (pdf, 4.61 MB)

Spec4159_Jan22_Maintenance_Automatic_Electric_Dials_Substations.pdf

AT&T Spec 4159 - Jan22 Maintenance Automatic Electric Dials Substations
Contributed by Chuck Hensley.

pdf AT&T Spec 4159 - SuppA Jun24 Maintenance Automatic Electric Dials Substations Popular

By 2735 downloads

Download (pdf, 675 KB)

Spec4159_SuppA_Jun24_Maintenance_Automatic_Electric_Dials_Substations.pdf

AT&T Spec 4159 - SuppA Jun24 Maintenance Automatic Electric Dials Substations
Contributed by Chuck Hensley.

pdf AT&T Spec 4170 - Apr22 Substation Private Branch Exchange Protector Installation Popular

By 3252 downloads

Download (pdf, 11.82 MB)

Spec4170_Apr22_Substation_Private_Branch_Exchange_Protector_Installation.pdf

AT&T Spec 4170 - Apr22 Substation Private Branch Exchange Protector Installation
Contributed by Chuck Hensley.

pdf AT&T Spec 4170 - SuppA Dec24 Substation Private Branch Exchange Protector Installation Popular

By 2702 downloads

Download (pdf, 2.55 MB)

Spec4170_SuppA_Dec24_Substation_Private_Branch_Exchange_Protector_Installation.pdf

AT&T Spec 4170 - SuppA Dec24 Substation Private Branch Exchange Protector Installation
Contributed by Chuck Hensley.

pdf AT&T Spec 4430 - Open Type Booths Tl Popular

By 2496 downloads

Download (pdf, 794 KB)

ATTSpec4430-OpenTypeBooths_tl.pdf

AT&T Spec 4430 - Open Type Booths Tl

pdf AT&T Spec 4448 Mar25 - Stations Apparatus for Deaf Subscribers Popular

By 1648 downloads

Download (pdf, 824 KB)

Spec4448_Mar25_-_Stations_Apparatus_for_Deaf_Subscribers_tci-ocr.pdf

AT&T Spec 4448 Mar25 - Stations Apparatus for Deaf Subscribers

Includes: Double Head Receiver Installations; Temporary Amplifier Installations w/ #27-A Amplifier; and Permanent Amplifier Installations w/ #23-A Amplifier and #6013-A Key. ATT. Contributed by Steve Cichorsky. Processed by Remco Enthoven and Paul Fassbender.

pdf AT&T Spec 4455 - Public Telephone Signs Tl Popular

By 2854 downloads

Download (pdf, 1.05 MB)

ATTSpec4455PubTelSigns_tl.pdf

AT&T Spec 4455 - Public Telephone Signs Tl

pdf AT&T Spec 4465 7-J And 7-K Coin Collectors Popular

By 2487 downloads

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ATT Spec No. 4465 ~ 7-J and 7-K Coin Collectors.pdf

AT&T Spec 4465 7-J And 7-K Coin Collectors

[Rescanned and bookmarked]

A. T. & T. Co.'s
Specifications No. 4465
January, 1926


STATIONS
NO. 7-J AND NO. 7-K COIN COLLECTOR
MAINTENANCE


DESCRIPTION OF COIN COLLECTOR
The #7 type coin collector is a prepayment collector for nickels only
and the illustration shown below is of the #7-J Coin Collector. The #7-K
Collector is the same as the #7-J except that it has a larger cash
compartment.

(Copyright, 1926, American Telephone and Telegraph Company)
Printed in U. S. A.

pdf AT&T Spec 4566 - CP Insert Oct31 Dial Manual CB Stations Popular

By 2864 downloads

Download (pdf, 1.42 MB)

Spec4566_CP_InsertOct31_Dial_Manual_CB_Stations.pdf

AT&T Spec 4566 - CP Insert Oct31 Dial Manual CB Stations
Contributed by Chuck Hensley.

pdf AT&T Spec 4566 - SuppB Jun30 Dial Manual CB Stations Popular

By 2872 downloads

Download (pdf, 1.48 MB)

Spec4566_SuppB_Jun30_Dial_Manual_CB_Stations.pdf

AT&T Spec 4566 - SuppB Jun30 Dial Manual CB Stations
Contributed by Chuck Hensley.

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Thanks for new documents from Ed Palazzo, Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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